Method and system for protocol offload in paravirtualized...

Details Method and system for protocol offload in paravirtualized... Method and system for protocol offload in paravirtualized...

2011-04-12

2011-04-12

Ho, Andy (Department: 2194)

Electrical computers and digital processing systems: interprogra

Data transfer between operating systems

C719S321000, C719S324000, C719S327000, C719S328000

Reexamination Certificate

active

07926067

ABSTRACT:
Certain aspects of a method and system for protocol offload in paravirtualized systems may be disclosed. Exemplary aspects of the method may include preposting of application buffers to a front-end driver rather than to a NIC in a paravirtualized system. The NIC may be enabled to place the received offloaded data packets into a received data buffer corresponding to a particular GOS. A back-end driver may be enabled to acknowledge the placed offloaded data packets. The back-end driver may be enabled to forward the received data buffer corresponding to the particular GOS to the front-end driver. The front-end driver may be enabled to copy offloaded data packets from a received data buffer corresponding to a particular guest operating system (GOS) to the preposted application buffers.

REFERENCES:
patent: 2005/0135415 (2005-06-01), Fan et al.
patent: 2008/0144635 (2008-06-01), Carollo et al.
patent: 2009/0183180 (2009-07-01), Nelson
patent: 2010/0299459 (2010-11-01), Tripathi et al.

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